> -----Original Message----- > From: Mark Carlson [mailto:[EMAIL PROTECTED] > Sent: Saturday, 20 October 2007 1:35 AM > To: misc@openbsd.org > Cc: Edwards, David (JTS) > Subject: Re: USB Disk problems > > On 10/17/07, Steve Shockley <[EMAIL PROTECTED]> wrote: > > Edwards, David (JTS) wrote: > > > I'm using 250G laptop disks powered from the USB cable. > > > > Maybe you're hitting the limit of the USB power output? > > Agreed. Use two separate full-power USB ports (i.e. neither port > shares any of each other's power) and try again. Invest in a powered > USB hub if you must. > > Each disk will be consuming more than 1.25W, and the USB spec maxes > out at 2.5W per powered port.
Hi, The external 4 port hub I'm using is independantly powered. But I have the same problem if I use the three on-board ports (two at the rear and one at the front) or mix it up (say two on the external hub and one in the port at the front). My solution so far is to remove the requirement for the third disk. It seems rock solid until I try to use the third disk. ciao dave --- Dave Edwards
